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Am having the same problem when parked in the heat for a length of time. IMA battery goes down to 1 bar on display and motor loses power, IMA then fails to assist. Seems to be happening more frequently now.

2009 Honda Civic Hybrid battery

2 days ago I bought a rebuilt 2009 HCH with 28,400 miles. I had no idea the IMA battery problem was so prevalent when I bought it. I owned a 2005 HCH until 1-10-14 when it was totaled and had no problem with the IMA battery after 144, 000 mile except mileage went down to 40 mpg.
does anyone know if a rebuilt HCH is still eligible for the 80,000 miles/8 yr warranty?
suzanne

2007 Honda Civic Hyrbid 107,000 miles in Florida

Ok, so I had my IMA light come on on my 2007 Honda Civic Hyrbid 107,000 miles (I'm in Florida btw). I went to the dealer and was originally quoted $3300 to replace it. I spoke with the Corporate Honda and they offered to pay 75% of the cost (I pay roughly $700).. Is there anyone else in Florida that is in a similar situation? just trying to figure out if that price is what others are being offered also? They told me the warranty was extended to 92,000 miles and i'm just out of that... Is that information accurrate? I've read so many different statements online about this and no real clear information

Im getting 10l/100km on my Hybrid ? i reset the meter and got this reading for the 150km ... this is 10km/L about half the advertised efficiency.. temperature is -10 celcius mostly and never crossing 1500 RPM no matter what... im just baffled. 154KM and brought it second hand

This thread is not dead yet

Thanks for providing your experience with Honda and the dealer in Tempe. I just purchased a used HCH 2007, with 107k miles. The service record shows the battery pack was already replaced 50k miles ago. I am hopeful that it will all turn out well During the test drive, everything seemed just fine.

I have owned several Honda's and believe in them and the cars.

Originally Posted by mgrantaz

The last post was pretty old, so will just share my recent 2007 Honda Civic Hybrid battery experience. I have 119,000 miles on it. The IMA battery was changed in 2010 under warranty. Software upgrades were done two years ago.

Several weeks ago I noticed that the check engine light (CEL) was coming on intermittently. Then the IMA light started coming on intermittently too in recent weeks. I\\\\\\\\\\\\\\'ve been getting only 36 MPG, had problems with acceleration, and had brakes grabbing and shaking problems in recent months. I live in Phoenix, so batteries take a beating in the summer. But now it is winter.

So I looked at all the posts on the internet yesterday about IMA batteries, 12V batteries, etc and found that with both lights coming on, it definitely was an IMA battery problem and Honda America might even pay for a new one.

So yesterday I took it into Honda for diagnostic testing and explained all the symptoms above to the adviser. Also told him that I was going to get Honda America involved if the diagnostic codes indicated the IMA battery was bad again.

So about an hour later, the adviser sits me down and explains that it was the IMA battery and they normally cost $3000 to replace. And that he contacted Honda America and explained the situation with the lights coming on.

They told him that they would cover 90% of the costs and that only left 10% ($300) that I\\'d have to pay. He asked if that was acceptable and I said yes. So today the battery came in from Calif. and they replaced it in about 2 hours.

The Hybrid runs better, stronger, and gets better mileage so far. The adviser said the brakes grabbing was related to IMA and that would probably clear up with the new battery...he was right.

So I am happy with Tempe Honda and Honda America, especially when compared to some other people on this forum who have had to pay for the whole battery.

I am yet another victim after just 29000 miles, it started when the car did not start and I had to change the regular battery, soon after the IMA light came on after every 40 km and it goes off when you stop the engine and comes on again after about 40km, I took it to honda and they said the IMA came on because I had removed the regular battery without a back up 5volt battery connection which i was clueless about, now they say the IMA is not charging at its regular 60 or 70% instead the charge is only 4% though the auto stop is effective. Can someone please help me out as i cannot afford to buy a new battery. I will be very thankful if any one who has got out from a similar experience or someone with a mechanical background to help me as the guys at Honda care a dam about the problem although they say their motto is to make the customer happy???